deterrent

Strong street lighting acts as a deterrent to criminal activity in residential neighborhoods.

(Chinese) 良好的街道照明对住宅区的犯罪活动起到了威慑作用。

The threat of a heavy fine is usually a sufficient deterrent for most illegal parkers.

(Chinese) 重罚的威胁通常足以威慑大多数违章停车的人。